Effect of Conway Medium and f/2 Medium on the growth of six genera of South China Sea marine microalgae

• Published in: Bioresource technology 2013-08, Vol.141, p.75-82
• Main Authors: Lananan, Fathurrahman, Jusoh, Ahmad, Ali, Nora’aini, Lam, Su Shiung, Endut, Azizah
• Format: Article
• Language: English
• Subjects: Biological and medical sciences; Cell density; Chaetoceros; China; Chlorella; Chlorella - growth & development; Conway Medium; Cultivation; Density; Dunaliella; f/2 Medium; Fundamental and applied biological sciences. Psychology; Growth performance; Isochrysis; Liquids; Media; Microalgae; Microalgae - drug effects; Microalgae - growth & development; Nitrates - chemistry; Nitrates - metabolism; Oceans and Seas; Pavlova; Population Density; Seawater - chemistry; Syringes; Tetraselmis; Time Factors; Waste Water - chemistry; Water Purification - methods
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2013.03.006

•Growth of microalgae from South China Sea were tested in Conway and f/2 media.•Parameters including SGR, density and mother–daughter intercept were investigated.•Late mother–daughter intercept showed the high-tolerance on nutrient depletion.•Chlorella sp. found to be the most resilient among microalgae genera tested.•Cultivation medium selection should be based on the application of the microalgae. A study was performed to determine the effect of Conway and f/2 media on the growth of microalgae genera. Genera of Chlorella sp., Dunaliella sp., Isochrysis sp., Chaetoceros sp., Pavlova sp. and Tetraselmis sp. were isolated from the South China Sea. During the cultivation period, the density of cells were determined using Syringe Liquid Sampler Particle Measuring System (SLS-PMS) that also generated the population distribution curve based on the size of the cells. The population of the microalgae genera is thought to consist of mother and daughter generations since these microalgae genera reproduce by releasing small non-motile reproductive cells (autospores). It was found that the reproduction of Tetraselmis sp., Dunaliella sp. and Pavlova sp. could be sustained longer in f/2 Medium. Higher cell density was achieved by genus Dunaliella, Chlorella and Isochrysis in Conway Medium. Different genera of microalgae had a preference for different types of cultivation media.